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<?php $date = '2014-03-31'; //$date = '2014-03-05'; print_r("date: $date"); $date = new \DateTime($date); $date->add(new \DateInterval('P3M')); $newExpireDate = $date->format('Y-m-d'); print_r("newExpireDate: $newExpireDate"); $date = new \DateTime($newExpireDate); $date->sub(new \DateInterval('P3M')); $newExpireDate = $date->format('Y-m-d'); print_r("newExpireDate: $newExpireDate");
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/lHK5Q
function name:  (null)
number of ops:  45
compiled vars:  !0 = $date, !1 = $newExpireDate
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '2014-03-31'
    5     1        INIT_FCALL                                               'print_r'
          2        NOP                                                      
          3        FAST_CONCAT                                      ~3      'date%3A+', !0
          4        SEND_VAL                                                 ~3
          5        DO_ICALL                                                 
    7     6        NEW                                              $5      'DateTime'
          7        SEND_VAR_EX                                              !0
          8        DO_FCALL                                      0          
          9        ASSIGN                                                   !0, $5
    8    10        INIT_METHOD_CALL                                         !0, 'add'
         11        NEW                                              $8      'DateInterval'
         12        SEND_VAL_EX                                              'P3M'
         13        DO_FCALL                                      0          
         14        SEND_VAR_NO_REF_EX                                       $8
         15        DO_FCALL                                      0          
    9    16        INIT_METHOD_CALL                                         !0, 'format'
         17        SEND_VAL_EX                                              'Y-m-d'
         18        DO_FCALL                                      0  $11     
         19        ASSIGN                                                   !1, $11
   11    20        INIT_FCALL                                               'print_r'
         21        NOP                                                      
         22        FAST_CONCAT                                      ~13     'newExpireDate%3A+', !1
         23        SEND_VAL                                                 ~13
         24        DO_ICALL                                                 
   14    25        NEW                                              $15     'DateTime'
         26        SEND_VAR_EX                                              !1
         27        DO_FCALL                                      0          
         28        ASSIGN                                                   !0, $15
   15    29        INIT_METHOD_CALL                                         !0, 'sub'
         30        NEW                                              $18     'DateInterval'
         31        SEND_VAL_EX                                              'P3M'
         32        DO_FCALL                                      0          
         33        SEND_VAR_NO_REF_EX                                       $18
         34        DO_FCALL                                      0          
   16    35        INIT_METHOD_CALL                                         !0, 'format'
         36        SEND_VAL_EX                                              'Y-m-d'
         37        DO_FCALL                                      0  $21     
         38        ASSIGN                                                   !1, $21
   18    39        INIT_FCALL                                               'print_r'
         40        NOP                                                      
         41        FAST_CONCAT                                      ~23     'newExpireDate%3A+', !1
         42        SEND_VAL                                                 ~23
         43        DO_ICALL                                                 
         44      > RETURN                                                   1

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